Water Heater Regulations 2025. It is estimated the new standards will go into effect by may of 2029. The biden administration has unveiled the first new energy efficiency standards in over 20 years for water heaters in commercial buildings, a move it says could slash greenhouse gas emissions.

Department of energy on tuesday finalized new energy efficiency standards for several types of residential water heaters, in a rule it expects will generate more. Key stakeholders, including environmental advocates and a major u.s.